javascript - 将对象数据传递给上层对象属性

Question

我有一个下面的数组列表，我想从下到上分配一个值。

代码示例:

var tempArrayList=[
{org1:null,org2:"Office",org3:"HR",org4:"Payroll",org5:"Pay"},
{org1:null,org2:null,org3:"HR",org4:"Payroll",org5:"Pay"},
{org1:null,org2:"Office",org3:null,org4:null,org5:"Pay"},
{org1:null,org2:"Office",org3:"HR",org4:"Payroll",org5:"Pay"},
{org1:"head1",org2:null,org3:null,org4:"Payroll",org5:"Pay"}
];

for(var i=0;i<tempArrayList.length;i++) {   
    var temp=tempArrayList[i];
    var org1=temp.org1;
    var org2=temp.org2;
    var org3=temp.org3;
    var org4=temp.org4;
    var org5=temp.org5;
    
    document.write(JSON.stringify(temp));
    document.writeln("<br>");  
}

我的问题:如何将 org2 值设置为 org1，将 org3 值设置为 org2......

// if org1 is null then temp.org1 = temp.org2, temp.org2 = temp.org3, temp.org3 = temp.org4, temp.org4 = temp.org5

// if org1 and org2 is null then temp.org1 = temp.org3, temp.org2 = temp.org4, temp.org3 = temp.org5, temp.org4 = null

Answer 1

过滤值数组中的所有空值然后遍历键并分配过滤后的值或空值

var tempArrayList=[
{org1:null,org2:"Office",org3:"HR",org4:"Payroll",org5:"Pay"},
{org1:null,org2:null,org3:"HR",org4:"Payroll",org5:"Pay"},
{org1:null,org2:"Office",org3:null,org4:null,org5:"Pay"},
{org1:null,org2:"Office",org3:"HR",org4:"Payroll",org5:"Pay"},
{org1:"head1",org2:null,org3:null,org4:"Payroll",org5:"Pay"}
];

tempArrayList.forEach((o) => { 
   const vals = Object.values(o).filter(v => v);           
   Object.keys(o).forEach((key, i) => o[key] = vals[i] || null);
});



console.log(tempArrayList)

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